So the whole game? How much content is there roughly past the party scene?
I used "remade" as general term, sorry for that. They said the overall scenes of the game after the scene Cade invited you to the party won't be remade, only the dialogue will (so that it suit the Isekai theme), and the overall interactions probably will be the same.
(TL;DR:) Only the dialogue will change, so people won't say "Welcome back MC, long time no see!" Sort of thing